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Patented Oct. 28, |879. ZT/yf O-LITHOGRAPHE METTERE. FHOT E. HAMER,JAMETCALPE 8v E. DAVIES. Injector ma f. M a n :zwl z mm l L L wm M B, @L@fr O2/f. m

UNITED EDI/VARI) HAMERfAND JAMESMETOALFE,'OF'ABERYSTWYTH'COUNTY OFOARDIGAN, ANI)EDIlV-ARD.D'AVIES,` OF'LLANDINAM, COUNT-Y OF MONT# GOMERY,KINGDOMOF GREAT BRITAIN. y l

|ivllPRovelvnaNTl Specilication forming part of Letters Patent No.v221,059, dated October 28, 1879; application filed May 18, 1878;patented in England, October 29, 1877.

To all whom it may concern Be it known that we, EDWARD HAMER and J AMESMETGALFE, both of Aberystwyth, in the county of Cardigan, and EDWARDDAVLES, of Llandinannin the-county of Montgomery, in theKiugdom of GreatBritain, have inventednew and useful Improvements in Apparat-us forFeeding Locomotive and other SteamBoil ers or Generators, calledInjectors,77 for which we have obtained Letters Patent in Englandvbearing date the 29th of October, `1877, fand numbered 4,014, applicablealso -for lraisin g and tbrcing'liquids for other purposes; andwe, thesaid EDWARD HAMER and JAMEs Mn'rcALnn and EDWARD DAVIEs, do herebydeclare the nature of the said invention and in what manner the same isto be performed to be particularlydescribed'and ascertained in and bythefollow-in g statement thereof-that is to say:

This invention has reference to further improvements upon the apparatusand injector for which Letters Patent 'No.fll were granted to us iuEngland bearingdate 14th February, 1876 5 and it consists of an improvedform of injector for feeding boilers or for raising` or forcing liquids.

The improvements in the injector consist in forming that part known asthe combiningcone77 (wherein the steam an d water are brought intocontact) in such a manner that `its area and capacity may be easily andrapidly increased or diminished forpfacility in starting. For thispurpose we construct that portion of the piece inwhich thecombining-cone is formed in two parts capable of sliding laterallytoward and from each other in a direction transverse tothe axis of thecone, and so to increase orV diminish the area of the nozzle of thecone. Connected to the sliding part ofthe piece in which thecombining-cone is formed is a lever actuated by a handle or hand-Wheeland screw or other suitable mechanism, so that the attendant may have itentirely under control, and so facilitate the starting ofthe injector.

When ready for starting the sliding part is drawn backward to give anincreased free section to that part of the cone. The exl1auststeam andwater are then admitted and pass through the combiningcone. As soon asthis is effected the sliding part is forced forward by the lever, andforms a complete cone of the proper 'size for the continuous workin gofthe injector with exhaust-steam.

In steam-engines providedwith injectors of this class we usually providethe exhaust or blast pipe with a perforated plate adapted to be rotatedupon a second perforated plate, the

yperforations in both being arranged to :register with each other whenin proper position,

.position of the openings being shown on Fig.

5. .Bis nutfor adjusting the spindle G-so as to regulate the size of thesteam-opening through the steam-cone D. The position of this steam-conecan also be regulated by the' pinion E, Fig. 3, workin g into teeth onthe ontside of the cone D. F is the outer casing, having at the topallange to receive the steam-pipe, and on one side the feed-water inletGr. Below this casing is the combining-cone, made in two parts, H and J.(Shown also in horizontal section, Fig. 4.) The part H isscrewed to thecasing F, and is formed so as to receive the slide J.

In manufacturing that portion ofthe piece in which the combining-cone isformed, the two pieces II and J are rst carefully fitted to each other,and then, having been firmly secured, the combiningfcoue or chamber isbored by suitable boring-bits. The movable part J is actuated by thelever shown on Fig. 1, and is represented on Fig. 4 as drawn backward,

so as to leave an opening, the closed position being represented bydotted lines, and in Fig. 3 the part J 'is represented as closed,itsdrawnback position being represented by the dotted' lines.

At the lower part of the combining-cone is the overflow-opening K, andscrewed into the lower end of the combining-cone is the discharge-coneL, with tlange for connectingit to feed-pipe of boiler.

It must be understood that the details of construction may be varied,the important feature being the construction ot' that portion in whichthe combining-cone is formed in separate parts capable ot' slidinglaterally toward and from each other, and although in the arrangementsWe have shown in t'he drawings above referred to only one ol' the partsby which the combining-cone is Jformed is shown tobe movable, itwill bereadily seen that two or more such parts could, in a similar manner, bemade movable.

Another arrangement ot' our improved injector, constructed to allow ofthe admission of a further quantity ot' exhaust steam around the lowerend ot' the combining-cone, is shown in the other ligures.

Fig. 6 is an elevation 5 Figs. 7 and S, vertical sections taken at rightangles to each other, and Fig. t) is a horizontal section through thecombining-cone.

In these views many of the parts are similar in construction andposition to those al` ready described, the additional parts being theinlet M for the additional exhaust-steam, the

. circular chamber N, formed round the combining-cone, the splitco11eQQ,made in two pieces and forming the extra combining-cone, and thescrews l I), one of which is inserted in each halt` of the split conc.By this arrangement the body ot' steam and water passing Jfrom thecombiningcone is superheated, and passes through the discharge-cone andinto the boiler at an increased temperature.

Having now particularly described and ascertained the nature of our saidinvention and how the same may be carried into practical operation, wewould have it understood that what we claim, and desire to secure byLetters Patent, is-

1. In an injector for steanrengines, a twopart combining cone, wherebythe sectional area of the steam and Water passage of said cone maybeenlarged or contracted independently ofthe spindle. substantially asdescribed.

2. rEhe two-part combining-cone, consisting of the stationary partH andthe laterally-movable part J, in combination with the casing F and ahand-lever or equivalent device, substantiall y as described, tor thepurpose set forth.

3. In an injector for steam-engines, the combination of adischarging-cone with a laterallyadjustable combinin g-cone,substantially as described, for the purpose specified.

4. In combination, the laterally-adjustable cone H J and thevertically-adjustable cone D, substantiallyas described, fertile purposespecicd.

5. In an injector for steam-engines, the vertically and independentlyadjustable stcam cone and spindle, the laterally-adjustable combiningcone, and the discharging-cone, all comA bined, constructed, andoperating substantially as described, for thepnrpose specified.

6. In an injectortorsteam-engines, the combin ation of avcrtcally-adjustable spindle, C, a vertically-adjustable steam-cone, I),a laterally-adjustable steam-cone, .I H, a dischargingcone, L, thesteam-inlet A, water-branch Gr, andthe usual overflow-pipe, allcombined, constructed, and operating substantially as dcscribed andshown.

CHARLES BARLow, F. C. BARLOW.

